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Diffstat (limited to 'man2/prctl.2')
| -rw-r--r-- | man2/prctl.2 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/man2/prctl.2 b/man2/prctl.2 index c6d828a910..5607188440 100644 --- a/man2/prctl.2 +++ b/man2/prctl.2 @@ -652,6 +652,34 @@ in a process life time. Any further attempts will be rejected. This should help system administrators monitor unusual symbolic-link transitions over all processes running on a system. +.P +The following options are available since Linux 3.18. +.\" commit f606b77f1a9e362451aca8f81d8f36a3a112139e +.TP +.BR PR_SET_MM_MAP +Provides one-shot access to all the addresses by passing in a +.I struct prctl_mm_map +(as defined in \fI<linux/prctl.h>\fP). +The +.I arg4 +argument should provide the size of the struct. + +This feature is available only if the kernel is built with the +.BR CONFIG_CHECKPOINT_RESTORE +option enabled. +.TP +.BR PR_SET_MM_MAP_SIZE +Returns the size of the +.I struct prctl_mm_map +the kernel expects. +This allows user space to find a compatible struct. +The +.I arg4 +argument should be a pointer to an unsigned int. + +This feature is available only if the kernel is built with the +.BR CONFIG_CHECKPOINT_RESTORE +option enabled. .RE .TP .BR PR_MPX_ENABLE_MANAGEMENT ", " PR_MPX_DISABLE_MANAGEMENT " (since Linux 3.19) " |